Friction-buffer for railway-cars.



C. E. DATH. FRIGTION BUFFER FOR RAILWAY CARS.

APPLICATION FILED MAR 9, 1914y 1 1 20,290. Patented Dec. 8, 1914.

1N VENTOR. WITNESSES. Hm/[g55 542%/ UNITED STATES PATENT FFICE.

CHARLES E. DATH, 0F CHICAGO', ILLINOIS, ASSIGNOR T0 WILLIAM H. MINER, 0FCHICAGO, ILLINOIS.

FRICTION-BUFFER. FOR RAILWAY-CARS.

Application filed March 9, 1914,

To all whom it may concern:

ABe it known that I, CHARLES E. DATH, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Friction-Buffers forRailway7Cars, of which the following is a full, clear, concise, andexact description, reference being had to the accompanying drawings,forming a part of this specifica-jy tion.

My invention relates to friction buffers for railway cars.

The object of my invention is to provide a friction buffer of eiicientoperation.

In the drawings forming a part of lthis specification, Figure 1 is aplan view of a buffer embodying my invention; Fig. 2 is a verticallongitudinal section on line 2*'2 of Fig. 1; Fig. 3 is a front end view;and Fig. 4 is a detail showing forward buffer plate.

Referring to the drawings, the numeral 5 indicates a buffer shell havinga rearward spring cage 6, preferably of a general boxlike shape, and inpreferable construction adapted to receive two sets of springs. Itfurther consists of a preferably cylindrical central portion 7,comprising the friction shell; and further consists of a forward portion8, preferably box-like in shape, to receive the initial buffer spring 9.The spring cage 6, friction shell 7, and initial spring cage 8 areintegrally formed, the spring cage 6 having mounted therein inhorizontal tandem arrangement the springs 10-10, the said springs beingseated at their rear ends against the preferably integral plate 1iforming the rear end of the spring cage, and at their forward endsagainst the movable spring seat 12.' The friction shell 7 has mountedtherein the friction mechanism 13,

.comprising a plurality of annular-ly arranged friction shoes 14, awedge 15 adapted to spread the shoes, and the anti-friction rollersIt-16, there being one mounted between each friction shoe and theadjacent wedging face ofthe wedge 15. The forward end 17 of theiwedg'e15extends into the initial spring cage 8 and within the spring 9therein. The buffer plate 18 is adapted to be engaged by the rear end ofthe buffer Specification of Letters Patent.

; against the friction shoes.

Patented Dec. 8, 1914.

Serial No. 823,303.

nism and the springs within the spring cage 6 into compression resistingaction. The initial spring 9 is forwardly seated against the bufferplate 18, and rearwardly seated A At its forward end the initial springcage 8 is provided with an opening 21 between the upper and lowerin-tuined shoulders 22H22. The said shoulders engage the upper and lowerflanges 23u23 with which the buffer plate is provide-fl to prevent thedisplacement of the buffer plate from the spring cage 8. In mounting thebuffer plate 18 within the spring cage, the same is suitably turned topermit itz` passage between the shoulders 22-2Q, andl is adjusted to itsposition las illustrated in Fig. 2 of the drawing within the spng cage8. The shell 5 in having the integral forward portion 8 forming achamber for the initial spring 19 is provided with an efiicient meansfor guiding the buffer plate 18 in its rearward movement, and insuring adirect thrust against the wedging member of the friction mechanism.Further, it houses the initial spring and insures its direct `rearwardcompression along the line of draft through the buffer mechanism,insuring no distortion of the friction shoes in their position inrelation to the wedge when in its rearwardtravel the projection 20 ofthe buffer plate comes into engagement with the wedge 15.

I claim:

1. In a buffer for railways cars, the combination with the spring cageand friction shell, springs within the spring cage, and frictionmechanism within the friction shell, of an initial spring cage forwardlyextended from the friction shell, and integral therewith, a spring and abuffer plate within the shell, the initial spring cage being adapted toguide the buffer plate in its longitudinal movements.

2. In a buffer for railways cars, the. combination with the spring cageand friction shell, springs within the spring cage, and frictionmechanism within the friction shell, nf un initial spring cage forwardlyexprovided with flanges rearwardly engaging tended from the frictionShell, and integral said shoulders. therewith` 4 spring :1nd :i bufferplate Within the shell, the initial spring cage being CHARLES E BATH' 5adapted to guide the buffer plate, the said Witnesses:

initial spring enge being provided with in- ARLINE L. ROBERTSON,

turned shoulders, and the buffer plate being CARRIE G. RANZ.

